Today I worked overtime until almost 12:00 at night, and finally tomorrow I can rest. At this moment, Ito, my colleague, called. It turned out that her bathtub was broken, because our houses were close to each other, so she wanted to come and take a bath. When Ito went into the bathroom, even though I already had a girlfriend and knew it was wrong, I couldn't help but peek at her! But this was also discovered by Ito. Not only did she not get angry, but she also happily asked me if I felt sick. She also found out that I was still a new boy. And using the excuse that I can take the initiative when having sex with my girlfriend, Ito will teach me about sex! And so throughout that night, even though I had ejaculated countless times, every time I looked at Ito's body, my cock stood up immediately...